Electron-emitting device, electron source and image-forming...

Details Electron-emitting device, electron source and image-forming... Electron-emitting device, electron source and image-forming...

H - Electricity

01

J

H01J 19/02 (2006.01) H01J 1/316 (2006.01) H01J 9/02 (2006.01)

Patent

CA 2155062

In an electron-emitting device including, between electrodes, an electroconductive film having an electron emitting region, the electroconductive film has a film formed in the electron emitting region and made primarily of a material having the higher melting point than that of a material of the electroconductive film. Alternatively, the electroconductive film has a film formed in the electron emitting region and made primarily of a material having a higher temperature, at which the material develops a vapor pressure of 1.3 x 10-3 Pa, than that of a material of the electroconductive film. A manufacture method of an electron-emitting device includes a step of forming a film made primarily of a metal in the electron emitting region of the electroconductive film. The electron-emitting device has stable characteristics and improved efficiency of electron emission. An image-forming apparatus comprising the electron-emitting devices has high luminance and excellent stability in operation.

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